The DOI matches its Crossref record; 58 of the 58 references it cites were found in a registry or an index.
IFN Regulatory Factor-4 and -8 Govern Dendritic Cell Subset Development and Their Functional Diversity
Abstract
Dendritic cells (DCs) are bone marrow (BM)-derived APCs central to both innate and adaptive immunity. DCs are a heterogeneous cell population composed of multiple subsets with diverse functions. The mechanism governing the generation of multiple DC subsets is, however, poorly understood. In this study we investigated the roles of closely related transcription factors, IFN regulatory factor (IRF)-4 and IRF-8, in DC development by analyzing IRF-4−/−, IRF-8−/−, and IRF-4−/−IRF-8−/− (double-knockout) mice. We found that IRF-4 is required for the generation of CD4+ DCs, whereas IRF-8 is, as reported previously, essential for CD8α+ DCs. Both IRFs support the development of CD4−CD8α− DCs. IRF-8 and, to a lesser degree, IRF-4 contribute to plasmacytoid DC (PDC) development. Thus, the two IRFs together regulate the development of all conventional DCs as well as PDCs. Consistent with these findings, IRF-4, but not IRF-8, was expressed in CD4+ DCs, whereas only IRF-8 was expressed in CD8α+ DCs. CD4−CD8α− DCs and PDCs expressed both IRFs. We also demonstrate in vitro that GM-CSF-mediated DC differentiation depends on IRF-4, whereas Fms-like tyrosine kinase 3 ligand-mediated differentiation depends mainly on IRF-8. Gene transfer experiments with double-knockout BM cells showed that both IRFs have an overlapping activity and stimulate a common process of DC development. Nonetheless, each IRF also possesses a distinct activity to stimulate subset-specific gene expression, leading to the generation of functionally divergent DCs. Together, IRF-4 and IRF-8 serve as a backbone of the molecular program regulating DC subset development and their functional diversity.
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Self-citationIRF4 addiction in multiple myeloma
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Metadata
- Authors
- Tamura, T., Tailor, P., Yamaoka, K., Kong, H. J., Tsujimura, H., O’Shea, J. J., Singh, H., & Ozato, K.
- Venue
- The Journal of Immunology
- Publisher
- Oxford University Press (OUP)
- Published
- 2005-03-01
- Volume
- 174
- Issue
- 5
- Pages
- 2573-2581
- ISSN
- 0022-1767 (ISSN-L)
- 1550-6606
- OpenAlex
- W2141925741
- Cited by
- 423
- References
- 58
- FWCI
- 6.55
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tamura, T., Tailor, P., Yamaoka, K., Kong, H. J., Tsujimura, H., O’Shea, J. J., Singh, H., & Ozato, K. (2005). IFN Regulatory Factor-4 and -8 Govern Dendritic Cell Subset Development and Their Functional Diversity. The Journal of Immunology. https://doi.org/10.4049/jimmunol.174.5.2573
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